1 Translation CEN 013-2019 August 14, 2019 Subject Management discussion and analysis for business operation Quarter 2-2019 To The Manager and President The Stock Exchange of Thailand Operating

and analysis for the period ended June 30, 2018 To Director and Manager of the Stock Exchange of Thailand Referring to the submission of the reviewed financial statements for quarter 2/2018 of Wiik

Page 1 of 4 No. RJH – SET 9/2020 10 August 2020 Subject : Management’s Discussion and Analysis for the Second Quarter of 2020 To : The President The Stock Exchange of Thailand Rajthanee Hospital

: Management explanation and analysis Quarter 2/2020 ending 30 June 2020 Attention: The President of, The Stock Exchange of Thailand ZIGA Innovation Public Company Limited (“the Company”) would like to clarify

ที่ บช NO. AC.03/2020 14 August 2020 Subject: Clarification of changes in operating performance of more than 20% To: The President of the Stock Exchange of Thailand M.K. Real Estate Development Plc

: Management explanation and analysis Quarter 3/2020 ending 30 September 2020 Attention: The President of, The Stock Exchange of Thailand Ziga Innovation Public Company Limited (“the Company”) manufactures and

Page 1 of 4 No. RJH – SET 7/2020 11 May 2020 Subject : Management’s Discussion and Analysis for the First Quarter of 2020 To : The President The Stock Exchange of Thailand Rajthanee Hospital Public

Microsoft Word - Operating Result for the first quarter of 2020 SBN 010/2020 May 14, 2020 Subject : Operating Result for the first quarter of 2020 To : The Managing Director, The Stock Exchange of

1 --Translation-- Sor Gor 7/2018 January 19, 2018 Subject: Management Discussion and Analysis for the year ended December 31, 2017 (Unaudited) To: The President The Stock Exchange of Thailand

1 --Translation-- Sor Gor 11/2018 February 22, 2018 Subject: Management Discussion and Analysis for the year ended December 31, 2017 (Audited) To: The President The Stock Exchange of Thailand